Sun Microsystems T6300 manual Configuring the System Console, Communicating With the Server

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C H A P T E R 1

Configuring the System Console

This chapter explains what the system console is, describes the different ways of configuring it on your server, and helps you understand its relation to the system controller.

Topics covered in this chapter include:

■“Communicating With the Server” on page 1

■“Accessing the System Controller” on page 3

■“Switching Between the ALOM System Controller and the System Console” on page 9

■“ALOM sc> Prompt” on page 10

■“OpenBoot ok Prompt” on page 12

■“System Console OpenBoot Configuration Variable Settings” on page 17

Communicating With the Server

To install your system software or to diagnose problems, you need some way to interact at a low level with the system. The system console is the facility for this interaction. You use the system console to view messages and issue commands. There can be only one system console per computer.

The system console must be accessed through the ALOM CMT system controller during initial system installation. After installation, you can configure the system console to accept input from and send output to different devices.

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Contents Sun Blade T6300 Server Module Administration Guide Please Recycle Contents Managing RAS Features and System Firmware OpenBoot Configuration Variables Vi Sun Blade T6300 Server Module Administration Guide April Figures Page Tables Sun Blade T6300 Server Module Administration Guide April How This Book Is Organized PrefaceShell Prompts Using Unix CommandsRelated Documentation Typographic ConventionsDocumentation, Support, and Training Third-Party Web SitesSun Welcomes Your Comments Communicating With the Server Configuring the System ConsoleUsing the System Console What the System Console DoesWhat the Alom System Controller Console Does Using the Serial Port Accessing the System ControllerEstablish an Alom system controller session Accessing the System Console Through a Terminal ServerTo Use the Serial Port Activating the Network Management PortOpen a terminal session on the connecting device, and type To Access The System Console Through a Terminal ServerAccessing the System Console Through a TIP Connection To Access the System Console Through a TIP ConnectionA shell tool window on the Sun system, type If the number displayed by the uname -rcommand is less than Modifying the /etc/remote FileTo Modify the /etc/remote File Sun Blade T6300 Server Module Administration Guide April Network management or Serial management port Alom sc Prompt Access Through Multiple Controller Sessions Reaching the sc Prompt OpenBoot ok PromptGraceful Shutdown Methods to Reach the ok PromptAlom System Controller break or console Command Manual System ResetL1-A Stop-A Keys or Break Key Obtaining the ok Prompt For More Information About OpenBoot FirmwareTo Obtain the ok Prompt 2Ways of Accessing the ok PromptSystem Console OpenBoot Configuration Variable Settings Sun Blade T6300 Server Module Administration Guide April Managing RAS Features and System Firmware 1LED Behavior and Meaning Interpreting System LEDsType Controlling the Locator LEDAutoBoot Options Automatic System RecoveryError Handling Summary To Enable an Automatic Degraded BootSet the switches by typing Automatic System Recovery User Commands Reset ScenariosAt the ok prompt, type Enabling and Disabling Automatic System RecoveryTo Enable Automatic System Recovery At the sc prompt, typeObtaining Automatic System Recovery Information To Disable Automatic System RecoveryTo Obtain ASR Information Unconfiguring and Reconfiguring Devices To Unconfigure a Device ManuallyTo Reconfigure a Device Manually To Display System Fault Information Displaying System Fault InformationFor More Information on Multipathing Software Multipathing SoftwareStoring FRU Information To Store Information in Available FRU PROMsAt the sc prompt type OpenBoot Configuration Variables Variable-name Appendix a OpenBoot Configuration Variables Sun Blade T6300 Server Module Administration Guide April Index SymbolsProbe-ide, 14 probe-scsi, 14 probe-scsi-all, 14 showenv Setlocator sc command Sun Blade T6300 Server Module Administration Guide April